Question: For the 28 lamb birth weights of Example 6.2.2, the mean is 5.1679 kg, the SD is 0.6544 kg, and the SE is 0.1237 kg.

For the 28 lamb birth weights of Example 6.2.2, the mean is 5.1679 kg, the SD is 0.6544 kg, and the SE is 0.1237 kg.
(a) Construct a 95% confidence interval for the population mean.
(b) Construct a 99% confidence interval for the population mean.
(c) Interpret the confidence interval you found in part] (a). That is, explain what the numbers in the interval) mean.
(d) Often researchers will summarize their data in reports and articles by writing ± SD (5.17 ± 0.65)1 or ± SE(5.17 ± 0.12). If the researcher of this study is planning to compare the mean birth weight of these Rambouillet lambs to another breed, Booroolas, which style of presentation should she; use?

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